The reason I have made this guide is to give advice and since the main TOS website forum at the present is giving an error like this.

Accessing them from their main website first: treeofsavior.com

Accessing them from google or from any other website first.

Putting gems in the sockets of your equipment can be a tricky task when you have just started to play the game. I will guide you step-by-step in the art of gem socketing. pro-tip: click the images for better viewing lol

First, head to the main town of Klaipeda and find the blacksmith. The blacksmith is represented as an anvil in the map.

Once you found and talked to the blacksmith, choose the option <Socket Management>.

It will bring you to this window:
Right click your desired equipment then press the <Add Socket> button. Pressing the button will make the <? Undecided Panel> be made into an <Empty Socket>.

After that, the blacksmith's job is done. Now open your inventory and let's check that equipment.
Notice that there is an empty slot there at the side?

Putting the gem in that socket is easy. Select the gem of your liking and <Right click> it.

Scrolling up to see your equipment will show you this:
Notice that the green check marks indicate that it is available.

...And you are done!

I hope you enjoy the your new enhanced/downgraded weapon and thanks for reading!

ps. I am well aware of the fact that the directions are indicated at the bottom-most description of the gems. The font is so small that it is easily passable for the first time so I still made this guide. Cheers!

Also don't forget, later on in the real game there will be alchemists, alchemists can roast gems to make the downsides significantly less! Around 2/3 less effective, e.g. a -10 accuracy will be only a -3 accuracy!

Still wondering on how "gem roasting" works. From my understanding, and as mentioned above, it decreases the downsides of equiping gems to weapons. Any idea on the exp of gems? (sorry for the newb question )